RRC ID 53870
Author Sakitani K, Hayakawa Y, Deng H, Ariyama H, Kinoshita H, Konishi M, Ono S, Suzuki N, Ihara S, Niu Z, Kim W, Tanaka T, Liu H, Chen X, Tailor Y, Fox JG, Konieczny SF, Onodera H, Sepulveda AR, Asfaha S, Hirata Y, Worthley DL, Koike K, Wang TC.
Title CXCR4-expressing Mist1+ progenitors in the gastric antrum contribute to gastric cancer development.
Journal Oncotarget
Abstract Mist1 was recently shown to identify a discrete population of stem cells within the isthmus of the oxyntic gland within the gastric corpus. Chief cells at the base of the gastric corpus also express Mist1. The relevance of Mist1 expression as a marker of specific cell populations within the antral glands of the distal stomach, however, is unknown. Using Mist1-CreERT mice, we revealed that Mist1+ antral cells, distinct from the Mist1+ population in the corpus, comprise long-lived progenitors that reside within the antral isthmus above Lgr5+ or CCK2R+ cells. Mist1+ antral progenitors can serve as an origin of antral tumors induced by loss of Apc or MNU treatment. Mist1+ antral progenitors, as well as other antral stem/progenitor population, express Cxcr4, and are located in close proximity to Cxcl12 (the Cxcr4 ligand)-expressing endothelium. During antral carcinogenesis, there is an expansion of Cxcr4+ epithelial cells as well as the Cxcl12+ perivascular niche. Deletion of Cxcl12 in endothelial cells or pharmacological blockade of Cxcr4 inhibits antral tumor growth. Cxcl12/Cxcr4 signaling may be a potential therapeutic target.
Volume 8(67)
Pages 111012-111025
Published 2017-12-19
DOI 10.18632/oncotarget.22451
PII 22451
PMID 29340033
PMC PMC5762301
IF 5.168
Times Cited 4
Mice RBRC02892